The controller IC is designed for use in switched-mode power supplies within industrial communication systems for solar power inverters, motor drives, electric cars, energy storage systems, uninterruptible power supplies, data farms, and high power/high efficiency power supplies.
Many switched-mode power supply applications are incorporating wideband silicon carbide (SiC) transistors to improve power efficiency and transistor reliability. However, the high switching frequency incurs noise-generating transients, which can disrupt operations or require extensive mitigation. The MAX22701E offers the industry's highest common-mode transient immunity (CMTI) of 300kV/µs typical. CMTI is up to 3 times higher than the closest competitor, resulting in increased system uptime. Best-in-class driver propagation specifications (35ns typical, which is 2 times lower than the closest competitor) and propagation delay matching between the HS (High Side) and LS (Low Side) gate drivers (5ns maximum, which is 5 times lower than the closest competitor) help reduce transistor dead time. This, in turn, improves power efficiency by up to 4 percentage points. At 90 percent efficiency, each percentage point increase in efficiency results in a 10 percent improvement in energy loss. For example, improving efficiency from 90 to 94 percent results in an approximately 30 to 40 percent reduction in wasted energy (6 vs. 10 percentage points of wasted energy). The MAX22701E is available in a slim, 8-pin SOIC package (3.90 mm x 4.90 mm) with an extended operating temperature range of -40°C to +125°C.
